We're 29 posts deep into this thread. A lot of things have been discussed and tried. Things may have changed since post #1.
Could you please briefly describe to us exactly what the problem is at this point in time?
e.g., you're having trouble with the Internet; the Internet connects then drops; the Internet never connects, etc... -- please describe the exact nature of the problem.
Have you tried both wifi + Ethernet?
Can other devices connect to your home Internet and maintain a connection?
Have you completely reset your router?
If running wifi, please run this app -
https://www.sysnative.com/apps/netsh_lan_wlan_jcgriff2_.exe
Download and save to Desktop. RIGHT-click on the EXE, select "Run as Administrator"
It will take up to ~10-20 seconds to run; a Notepad will open. Save the Notepad; upload and attach it to your next post, please. The app is completely safe. I wrote it myself.
It gathers info about your wifi - driver; signal strength, etc...
Thank you.
Regards. . .
jcgriff2